19172209

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2207}}^1$

素因数の和:2304

約数の個数: 16

約数和(自身を含む): 23528448

約数和(自身を除く): 4356239

約数列:

[1, 7, 17, 73, 119, 511, 1241, 2207, 8687, 15449, 37519, 161111, 262633, 1127777, 2738887, 19172209]

約数ペア:

[(1, 19172209), (7, 2738887), (17, 1127777), (73, 262633), (119, 161111), (511, 37519), (1241, 15449), (2207, 8687)]